Federal investigators are still trying to figure out what set off the man who allegedly fired shots at the Earle Cabell Federal Building in Dallas on Monday. The FBI says 22-year-old Brian Clyde was not on any watch list prior to Monday's shooting, in which he apparently acted alone. Clyde attended Woodrow Wilson High School in Dallas as a freshman in 2012 before moving to Austin that year. He was discharged from the Army in 2017 and graduated this year from Del Mar College in Corpus Christi. Clyde reportedly had no previous criminal record.
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